import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class Main {
String languages[] = { "Java", "Perl", "Python", "C++", "Basic", "C#" };
JList jlst = new JList(languages);
Main() {
JFrame jfrm = new JFrame("Use JList");
jfrm.setLayout(new FlowLayout());
jfrm.setSize(200, 160);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jlst.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
jlst.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent le) {
int idx = jlst.getSelectedIndex();
if (idx != -1)
System.out.println("Current selection: " + languages[idx]);
else
System.out.println("Please choose a language.");
}
});
jfrm.add(new JScrollPane(jlst));
jfrm.setSize(300, 300);
jfrm.setVisible(true);
}
public static void main(String args[]) {
new Main();
}
}